Intel Core2 Duo E8400 vs AMD Athlon X2 4450B |
Released January, 2008
Intel Core2 Duo E8400
- 3 GHz
- Dual core
Reasons to buy the Intel Core2 Duo E8400
 | Much more l2 cache 6 MB | | Much higher clock speed 3 GHz |
| | Much better PassMark score 2,160 | | Much better PassMark (Single core) score 1,251 |
VS
Released April, 2008
AMD Athlon X2 4450B
- 2.3 GHz
- Dual core
Reasons to buy the AMD Athlon X2 4450B
| | Significantly lower typical power consumption 36.56W | | Much higher Maximum operating temperature 78 °C |
| | Significantly lower annual home energy cost 10.84 $/year | | Significantly lower annual commercial energy cost 39.42 $/year |
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Differences What are the advantages of each
| |||||||
| Much more l2 cache | 6 MB | vs | 1 MB | 6x more l2 cache; more data can be stored in the l2 cache for quick access later | |||
|---|---|---|---|---|---|---|---|
| Much higher clock speed | 3 GHz | vs | 2.3 GHz | More than 30% higher clock speed | |||
| Much better PassMark score | 2,160 | vs | 1,170 | Around 85% better PassMark score | |||
| Much better PassMark (Single core) score | 1,251 | vs | 692 | More than 80% better PassMark (Single core) score | |||
| Much better geekbench 2 (32-bit) score | 2,826 | vs | 1,720 | Around 65% better geekbench 2 (32-bit) score | |||
| Much newer manufacturing process | 45 nm | vs | 65 nm | A newer manufacturing process allows for a more powerful, yet cooler running processor | |||
| Much better overclocked clock speed (Air) | 4.22 GHz | vs | 3 GHz | More than 40% better overclocked clock speed (Air) | |||
| Much more l2 cache per core | 3 MB/core | vs | 0.5 MB/core | 6x more l2 cache per core | |||
| Much better overclocked clock speed (Water) | 4.23 GHz | vs | 2.58 GHz | Around 65% better overclocked clock speed (Water) | |||
| |||||||
| Significantly lower typical power consumption | 36.56W | vs | 52.81W | More than 30% lower typical power consumption | |||
| Much higher Maximum operating temperature | 78 °C | vs | 72.4 °C | Around 10% higher Maximum operating temperature | |||
| Significantly lower annual home energy cost | 10.84 $/year | vs | 15.66 $/year | More than 30% lower annual home energy cost | |||
| Significantly lower annual commercial energy cost | 39.42 $/year | vs | 56.94 $/year | More than 30% lower annual commercial energy cost | |||
Report a correction
Benchmarks Real world tests of Core2 Duo E8400 vs Athlon X2 4450B
GeekBench 3 (Multi-core) Data courtesy Primate Labs
GeekBench 3 (Single core) Data courtesy Primate Labs
GeekBench 3 (AES single core) Data courtesy Primate Labs
GeekBench (32-bit) Data courtesy Primate Labs
GeekBench
PassMark Data courtesy Passmark
PassMark (Single Core)
Specifications Full list of technical specs
summary | Core2 Duo E8400 | vs | Athlon X2 4450B |
|---|---|---|---|
| Clock speed | 3 GHz | 2.3 GHz | |
| Cores | Dual core | Dual core | |
| Socket type | |||
| LGA 775 | |||
| AM2+ | |||
features | |||
| Has a NX bit | Yes | Yes | |
| Supports trusted computing | Yes | Yes | |
| Has virtualization support | Yes | Yes | |
| Instruction set extensions | |||
| SSE2 | |||
| MMX | |||
| SSE3 | |||
| SSE | |||
| SSE4.1 | |||
| 3DNow! | |||
| Supplemental SSE3 | |||
| Supports dynamic frequency scaling | Yes | Yes | |
power consumption | |||
| TDP | 65W | 45W | |
| Annual home energy cost | 15.66 $/year | 10.84 $/year | |
| Annual commercial energy cost | 56.94 $/year | 39.42 $/year | |
| Performance per watt | 1.83 pt/W | 1.58 pt/W | |
| Typical power consumption | 52.81W | 36.56W | |
details | Core2 Duo E8400 | vs | Athlon X2 4450B |
|---|---|---|---|
| Architecture | x86-64 | x86-64 | |
| Threads | 2 | 2 | |
| L2 cache | 6 MB | 1 MB | |
| L2 cache per core | 3 MB/core | 0.5 MB/core | |
| Manufacture process | 45 nm | 65 nm | |
| Max CPUs | 1 | 1 | |
| Operating temperature | Unknown - 72.4°C | Unknown - 78°C | |
overclocking | |||
| Overclocked clock speed | 4.22 GHz | 3 GHz | |
| Overclocked clock speed (Water) | 4.23 GHz | 2.58 GHz | |
| Overclocked clock speed (Air) | 4.22 GHz | 3 GHz | |
integrated graphics | |||
| GPU | None | None | |
| Label | N/A | N/A | |
| Latest DirectX | N/A | N/A | |
| Number of displays supported | N/A | N/A | |
| GPU clock speed | N/A | N/A | |
| Turbo clock speed | N/A | N/A | |
| 3DMark06 | N/A | N/A | |
 Intel Core2 Duo E8400  Report a correction |  AMD Athlon X2 4450B Report a correction |
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